When f(x) is divided by x + 3, the remainder is 0. Select which statements about f(x) must be true. f(x)...

When f(x) is divided by x + 3, the remainder is 0.
Select which statements about f(x) must be true.
f(x) has a root at 3.
x + 3 is a factor of f(x).
f(-3) = 0
f(3) = 0